PHP Unconference Europe 2015

ibase_query

(PHP 4, PHP 5)

ibase_queryExecute a query on an InterBase database

Description

resource ibase_query ([ resource $link_identifier ], string $query [, int $bind_args ] )

Performs a query on an InterBase database.

Parameters

link_identifier

An InterBase link identifier. If omitted, the last opened link is assumed.

query

An InterBase query.

bind_args

Return Values

If the query raises an error, returns FALSE. If it is successful and there is a (possibly empty) result set (such as with a SELECT query), returns a result identifier. If the query was successful and there were no results, returns TRUE.

Note:

In PHP 5.0.0 and up, this function will return the number of rows affected by the query for INSERT, UPDATE and DELETE statements. In order to retain backward compatibility, it will return TRUE for these statements if the query succeeded without affecting any rows.

Errors/Exceptions

If you get some error like "arithmetic exception, numeric overflow, or string truncation. Cannot transliterate character between character sets" (this occurs when you try use some character with accents) when using this and after ibase_query() you must set the character set (i.e. ISO8859_1 or your current character set).

Changelog

Version Description
5.3.1 On success the function now returns TRUE if there were no affected rows, where it previously returned 0 (a zero followed by an empty space).

Examples

Example #1 ibase_query() example

<?php

$host 
'localhost:/path/to/your.gdb';

$dbh ibase_connect($host$username$password);
$stmt 'SELECT * FROM tblname';

$sth ibase_query($dbh$stmt) or die(ibase_errmsg());

?>

See Also

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User Contributed Notes 4 notes

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2
escoric at latinmail dot com
10 years ago
/* If your work environment is windows */

$link=ibase_connect ($path, $usuario, $password, 'WIN1251');
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1
chrisg at cordell dot com dot au
10 years ago
Simple function to retrieve the results of an SQL statement into an array, will also cater for BLOB fields:

<?php
function interbase_sql_exec ($sql) {
   
$dataArr = array();
   
$host = "svrname:path\filename.GDB";
   
$username = "whatever";
   
$password = "******";
   
$connection = ibase_connect ($host, $username, $password,'ISO8859_1', '100', '1');
   
$rid = @ibase_query ($connection, $sql);
    if (
$rid===false) errorHandle(ibase_errmsg(),$sql);
   
$coln = ibase_num_fields($rid);
   
$blobFields = array();
    for (
$i=0; $i < $coln; $i++) {
       
$col_info = ibase_field_info($rid, $i);
        if (
$col_info["type"]=="BLOB") $blobFields[$i] = $col_info["name"];
    }
    while (
$row = ibase_fetch_row ($rid)) {
        foreach (
$blobFields as $field_num=>$field_name) {
           
$blobid = ibase_blob_open($row[$field_num]);
           
$row[$field_num] = ibase_blob_get($blobid,102400);
           
ibase_blob_close($blobid);
        }
       
$dataArr[] = $row;
    }
   
ibase_close ($connection);
    return
$dataArr;
}
?>
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0
SenorTZ senortz at nospam dot yahoo dot com
11 years ago
Two comments on interogating system tables in Interbase or Firebird; I hope it helps.

1. if you try to build a query string to extract data from a system table (that has the form "rdb$some_name"), you should divide the "rdb$some_name" table name in your query string using the string merge operator ".".
$query = "select rdb"."$"."relation_name as TABLE_NAME from rdb"."$"."relations where rdb"."$"."system_flag=0";

2. The second thing is related to the fact that you can later use (after the call to ibase_fetch_object) as field identifier the ALIAS used in the query for the "rdb$some_name" table.

Example:
$get_table_names_query = "select rdb"."$"."relation_name as TABLE_NAME from rdb"."$"."relations where rdb"."$"."system_flag=0";
//
$res_table_names_query = ibase_query($dbconnection, $get_table_names_query);
//
while ($row_table_names = ibase_fetch_object($res_table_names_query))
{
    print($row_table_names->TABLE_NAME);//alias used
}

Editor's note:
it is easier to use a backslash to protect the $-sign.
eg. "select rdb\$relation_name as TABLE_NAME from ..."
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0
eric_cavalcanti at hotmail dot com
12 years ago
Using BLOB

Insert BLOB:

/* create blob */
$blob_id = ibase_blob_create();

/* fill blob */
ibase_blob_add($blob_id, $var_datablob);

/* close new blob */
$blob_id_str = ibase_blob_close($blob_id);

/* insert into table  */
ibase_query("INSERT INTO BLOB_TABLE (ID, BLOB) VALUES (1, ?)",$blob_id_str);

Open BLOB:

/* query */
$set = ibase_query("SELECT BLOB FROM BLOB_TABLE WHERE ID = 1");

/* fetche a row */
$row = ibase_fetch_object($set);

/* open BLOB for read */
$blob_id = ibase_blob_open($row->BLOB);

/* get BLOB data */
$stringBLOB = ibase_blob_get($blob_id);

/* print BLOB */
echo $stringBLOB;

/* close new blob */
ibase_blob_close($blob_id);

/* free result */
ibase_free_result($set);
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